|
(11) | EP 2 765 684 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
|
|
|
|
|||||||||||||||||||||||
| (54) | Rotating electrical machine |
| (57) A rotating electrical machine having a ventilation cooling structure in which an
unevenness of wind amounts in ventilating ducts (7) of a stator (1) caused by an influence
of a swirling stream from a rotor (3) is eliminated, thereby enhancing cooling performance
and preventing a function of fixedly supporting laminated steel sheets in the axial
direction from being deteriorated, wherein ventilating holes (13) are formed at a
plurality of positions in the radial direction of spacers (8) of the stator (1) and
the adjacent ventilating ducts (7) are communicated so that a coolant flows through
the ventilating holes from the duct on the side of a large wind amount toward the
duct on the side of a small wind amount.
|